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Thread Take-up Lever And Needle Bar Crank Attachment; Bh Switch Assy. Attachment - Brother XR9000 Service Manual

Computerized sewing machine with low-end computer 3 series.
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Main unit
13

Thread take-up lever and needle bar crank attachment

1. Apply a light covering of MOLYKOTE EM-30L to the thread take-up
lever attachment section of the needle bar crank 1.
2. Attach the thread take-up lever 2 to the needle bar crank 1 with the
screw 1.
3. Apply a light covering of MOLYKOTE EM-30L to the shaft of the thread
take-up lever 3.
4. Attach the thread take-up lever assy. 4 to the thread take-up lever link 5,
and then attach the needle bar crank rod 6 to the needle bar crank 1 and
the needle bar block 7.
*Key point
• Move the shaft 8 to the right, and then attach the thread take-
up lever assy. 4.
5. Tighten the screw 2.
6. Temporarily tighten the needle bar block 7 and the needle thread block 8
with the screw 3.
Apply MOLYKOTE EM-30L to the thread take-up lever
attachment section of the needle bar crank.
Apply MOLYKOTE EM-30L to the shaft of the thread
take-up lever.
1
2
3
14

BH switch assy. attachment

1. Attach the BH switch assy. 1 with the screw 1.
NOTE
• Align the boss 2 on the base holder with the hole on the BH
switch assy. 1.
1
Needle-presser unit
Light covering
Light covering
Screw, Flat
SM3.57-40X7 L
1.18 — 1.57 N
Screw
M3X8
0.59 — 0.78 N
Set Screw, Socket (FT)
M4X4
Hand tighten
Screw, Pan (S/P washer)
M4X8
1.18 — 1.57 N
1
XC8385***
8
2
XC8385***
9
Torque
·
m
Torque
·
m
Torque
Torque
·
m
2
1
3
5
1
6
3
4
7
2
1
1
3 - 47

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